Extractor for a grinder

Abstract

An extractor for a grinder. The extractor includes a partially enclosed body for positioning around a grinding disc of the grinder, the body having first and second walls welded to a covering portion that extends partially around a perimeter of each wall. The extractor further includes a port on the body with a passageway from the body to an outlet of the port, wherein vacuum applied to the extraction port draws grinding particulate created by operation of the grinder on a material from inside the body to the outlet for extraction. A barrel grinder that includes an extractor. A method of fabricating an extractor for a grinder.

What is claimed is: 
     
         1 . An extractor for a grinder, the extractor comprising:
 a partially enclosed body for positioning around a grinding disc of the grinder, the body having first and second walls welded to a covering portion that extends partially around a perimeter of each wall; and   a port on the body with a passageway from the body to an outlet of the port, wherein vacuum applied to the port draws grinding particulate created by operation of the grinder on a material from inside the body to the outlet for extraction.   
     
     
         2 . The extractor according to  claim 1 , wherein one of the walls is partially removable to provide access for removing the grinding disc without removal of the extractor. 
     
     
         3 . The extractor according to  claim 2 , wherein the partially removable wall is hingedly attached to the covering portion. 
     
     
         4 . The extractor according to  claim 2 , further comprising a retainer for retaining the partially removable wall to the covering portion. 
     
     
         5 . The extractor according to  claim 4 , wherein the retainer comprises one of: a fastener fastenable through the partially removable wall and to the covering portion for retaining the partially removable door to the covering portion; or a latch disposed on the wall or on the covering portion and connectable to the other for retaining the wall to the covering portion. 
     
     
         6 . The extractor according to  claim 1 , wherein the second wall comprises a coupler for coupling the extractor to the grinder and positioning the body around the grinding disc of the grinder. 
     
     
         7 . The extractor according to  claim 6 , wherein the coupler comprises coupling portions fastenable together to couple the grinder therebetween. 
     
     
         8 . The extractor according to  claim 1 , wherein the passageway of the port is from the covering portion of the body to the outlet of the port. 
     
     
         9 . The extractor according to  claim 1 , wherein the port is positioned to draw grinding particulate from an outer circumference of the grinding disc when vacuum is applied thereto. 
     
     
         10 . The extractor according to  claim 1 , wherein the extraction port comprises a fitting disposed proximate the outlet of the port, the fitting for fitment of a vacuum source thereto. 
     
     
         11 . The extractor according to  claim 10 , wherein the fitting is in the form of a bayonet fitting. 
     
     
         12 . The extractor according to  claim 1 , wherein the first and second walls comprise edges corresponding to a portion of each wall which the covering portion does not extend partially around, and past which the grinding disc of the grinder is exposed when a grinder is attached to the extractor. 
     
     
         13 . The extractor according to  claim 12 , wherein the edges are substantially planar. 
     
     
         14 . The extractor according to  claim 1 , wherein the first wall comprises a protrusion for housing a grinding disc fastener of the grinder when the extractor is attached to the grinder. 
     
     
         15 . The extractor according to  claim 1 , wherein the walls are substantially circular and comprise a diameter of about 166 mm. 
     
     
         16 . The extractor according to  claim 1 , wherein the walls and the covering portion are fabricated from steel or stainless steel. 
     
     
         17 . The extractor according to  claim 1 , wherein the extractor is for attachment to a barrel grinder. 
     
     
         18 . A barrel grinder having:
 the extractor according to  claim 1 ; and   a grinding disc or an abrasive disc.   
     
     
         19 . A method of fabricating an extractor for a grinder, comprising:
 welding a covering portion around a perimeter of a pair of spaced apart walls to form a partially enclosed body;   fitting, to the body, a port to provide a passageway from in the body to an outlet of the port; and   arranging a coupler, for coupling the extractor to a grinder and positioning the body around the grinder, on one of the walls.   
     
     
         20 . The method according to  claim 19 , wherein the walls are substantially parallel to one another, and the covering portion is substantially perpendicular to the walls.